I'm at a bit of a purchasing impasse and I'm hoping you can help. I'm looking to make a big purchase or two between now and mid-January, with a mind to use it/them on trips I have scheduled throughout the year.
I'm photographing snowy owls in Canada in January, Iceland in February, eagles in Utah followed by mammals in Teton in March, an abandoned prison in April, Glacier NP/Yellowstone NP in June, storms in AZ in July, whales/puffins in Maine in August, and 9/11 in NYC by helicopter in September.
My current gear is Canon 5D3, 17TS-E, 16-35L 2.8, 24-70L II, 70-200L IS II, and a 50 1.8 II. I have both the 1.4 TC III and 2.0 TC III, and 3x600EX-RT, as well as the SR-E3-RT. I'm in the process of selling the 16-35 for the new 16-35L IS (I don't find myself needing 2.
I enjoy nature/wildlife photography, landscape, portraiture, and travel.
So with that said, I'm looking at the 300 IS II or 500 IS (ver 1) refurb or lightly used respectively, and a 7D II. I could also consider the 500 IS II if I forgo a 2nd body. I'm torn. The 300 II option would see use for more stuff, no doubt, but I feel I'd need the 7D II for reach (?). For the cost of both I could get the 500 IS II.
With either 500, it's a purely wildlife lens. With the 300 I can see portrait, some sports, even tele landscape stuff too. Of course, I'm also looking at the 85L, 135L, and 100L macro, so portrait use isn't critical.
If anyone can offer some advice, it'd be much appreciated.
Side question: I was looking at MTF charts. Is 16-35L IS looking sharper than 24TSE? I'm no good at those charts.